Improvement in grates for furnaces



. @uiten gieten @anni @ffice JESSE REYNOLDS, or PHILADELPHIA,PENNSYLVANIA., Letters Patent No. 66,628, dated July 9, 1867.

IMPROVEMENT IN GRATES POB. FURNAGES.

.I dige tlganlt referat tu im tigen ltrttm ntent :mt mating nari at itsstmt:

TO ALLlWHOM IT MAY CONCERN:

Be it known'that I, JESSE REYNOLDS, of Philadelphia, Pennsylvania, haveinvented an Improvement in Fire-Haces for Furnaces, die.; and I dohereby declare the following to be a' full, clear, and exact descriptionof the saine, reference being had to the accompanying drawing, and tothe letters of reference marked thereon.

My invention consists in so constructing the grate-bearers ofadire-place, and so arranging them in respectto the Walls, and for thereception of the bars, that the latter may be readily inserted andsecured in their places or withdrawn.

In order to enable others skilled in the art to make and use myinvention, l will now proceed to describe its construction andoperation, reference being had 'to the'accompanying drawing, which formsa part of this specication, and in which- Figure 1 is a vertical sectionof part of a furnace showing my improvement.

Figure'2, a. transverse section of iig. 1.

Figure 3,'a section on the line 1-2, iig. 2.

Figure 4, a sectional plan'view of the furnace on the line 3 4, fig. 2 gand y Figure 5, a sectional view of part of an ordinary furnace.

Similar letters refer to similar parts throughout the several views.

A and A are the side walls, and Band B the front and rear walls of afurnace, in which are the ash-pit a, ash-door b, and tire-doorn. Thecast-iron grate-bearers C and C', the former at the front and the latterat the rear of the furnace, are supported by'and have theiiI endsimbedded in the brick-work ofY the Side walls A and A'. In each of thegrate-bearers is formeda longitudinal recess, e, for the reception ofthe ends f of the gratc-bar D, and the flanges t of the said bearersabove the recess e serve as a partial support fior the walls B and B. Ateachend of the grate-bearer G, close to the side walls of the furnace,and communicating with the recess e, is an opening, z', of'v a widthcorresponding to that of the ends of thegrate-bars, g. 4. Directly -overthese openings t' a portion7', of the front Wall of the furnace is cutaway, `for a purpose described hereafter. (Seeiig. l.) In the centre ofthe vfurnace are two or more cylindrical grate-bars, E, which areinserted from the front through circular openings in the bearers C andC', and in the recesses e of the bearers are partitions k c, one on eachSide of, and one between the cylindrical bars.

One of the bars D is introduced into the furnace through the {ire-door,and its end inserted into the ,r recess e of the bearer C', as shown infig. 1. Its opposite .end is then loweredA through-the cut-away portionjof the front wall, and through the opening z' of the bearer C, and isthen -moved laterally through the recesses e until it comes in contactwith the partitions k of-t-he bearers. Another bar is non inserted, andpushed up to the first, and this operation is repeated on both sides ofthe cylindricel bars E until the grate is complete, as shown in iig. 4.Each of the cylindricalV bars E above described is provided with ahandle, i', outside thefurnace, by which the bars can be Withdrawn orturned round, so as to rake the fire in the centre of the grater'v Thetire-place of a furnace, as usually constructed, is somewhat longer thanthe ash-pit beneath and this is rendered necessary by the usual mannerof arranging the grate-bars, as sbownin iig. 5, the bars resting uponthe bearers, and having their end sexposed; and as these ends are madewider than the body of the bar, so that the interstices of the grate maybe preserved of an equal width, it is evident that a continuous ledgemust be formed by the ends of the bars, and that there must be anobjectionable accumulation ofjashes on this ledge. By constructing thefire-place and grate-bearers in the manner described, the Walls can bebuilt up straight i from the bottom ofthe ash-pit. At the same time theobjectionable ledge is avoided andthe draught improved. Under somecircumstances the bearers may be inverted, so as to allow the b ars tobe inserted :and secured in their places from beneath.

l claim as my invention, and desire to secure by Letters Patenti Thebearer C, with its groove e and openings z'z', in combination with therecessed bearer C', the whole being arranged'within a fireplace for thereception of the grate-bars, substantially as described.

` In testimonywhereof-I have signed my name to this specification in thepresence of't'vvo subscribing witnesses.

i. REYNOLDS.

Witnesses t CHARLES E. Fosrnn, Wt JA vRf. DELANYJ

